$\frac{d}{dx}\left(1+\left(\ln\left(1-2x\right)\right)\right)$

$y\le x^2+3x+2$

$3ab\left(a+b\right)+3\left(a+b\right)^2c+3\left(a+b\right)c^3$

$5x\cdot563+46x$

$sin^2x+2=cos^2x+3sinx$

$z^2-64$

$-11\:-\left\{23\:+\left[\left(-23\:-\:56\right)-\left(27-65\right)\right]-\left[-12\:+\left(-8-17\right)\right]\right\}$